£ 107,808
listed price: 120.000 €Vat Included / Paid

Cantiere SAI Ambrosini - Tiger Shark 55

Cantiere SAI Ambrosini - Tiger Shark 55 Motor Boats for sale in Marina di Castellabbate at Boatshop24.co.uk
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Cantiere SAI Ambrosini - Tiger Shark 55
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Category:Motor Boats
Sales status:available
Manufacturer:Cantiere SAI Ambrosini
Model:Tiger Shark 55
Mooring Country:Italy
Year built:1970
Length:16.77 m/55 ft
Width:4.62 m/15 ft
Draft:0.7 m/2 ft
Engine manufacturer:2x cat 3208 425hp
Engine hours:300

The Tiger Shark 55 is probably one of the most iconic design from Franco Harrauer. ALALUNGA IX is the second (and only existing) hull of this boat refitted from the current owner she is in his original shape ready for cruising.


ALALUNGA IX is hull number two of the two “Tiger Shark 55’s” designed by Franco Harrauer and built by Cantieri Società Aeronautica Italiana owned by Ing. Ambrosini. The boat was the result of a design experiment involving the most important naval architects of the era. The concept was born at a symposium at the Salone Nautico di Genova in 1967. With the first boat launched a year later and displayed at the Genoa show.

The Società Aeronautica Italiana (SAI) Ambrosini shipyard was opened in Passignano sul Trasimeno specifically to build the Macchi C200 fighter plane used by the Italian military during World War II. After the war the facility start using its technology and construction skills for civil aviation projects and the two yacht designs from Franco Harrauer: the Tiger Shark 55 and the Blueshark 950.

Today ALALUNGA IX is a great example of classic Franco Harrauer design and the technological experimentation found in post-war Italy. She is not only a piece of important Italian history, but a work of art in her construction and a very capable sea-going motor yacht, ideally suited to offshore sportfishing.

Refitted in 2017 and with the benefit of replacement CAT 425hp engines in 1999 (with only circa 300hrs run), ALALUNGA IX is in great shape and ready for her next owner.


The sea vocation of SAI Ambrosini was born from the seaplanes, from the light alloy processing technologies acquired in decades of aeronautical processing, which led to the construction of avant-garde racers.

Many projects were carried out by the Marine Division of the SAI Ambrosini both for civil and military use; for the private clientele many sailboats and motor boats were built and, among the first, they are unforgettable YENA - at the top of the most important IOR rankings and unharmed by the terrible storm of the 1979 Fastnet, DIDA, CARINA VON FORELE, PACIFIC, DOCTOR FAUST, EMEREAUDE II, IL MORO DI VENEZIA - entirely in light alloy, and LONGOBARDA - first maxi-yacht in carbon fibre..


Not many years have passed since February 1967 when a small group of naval architects gathered at the Genoa International Boat Show to discuss the various and complex problems of the sector in a symposium.

Today, just over three years away, the results confirm the need for the presence of the naval designer in the team of designers. These architects are specialists who know the nautical problems of life on board and navigation: they are professionals who have a particular direct construction experience, combined with a sensitivity on the knowledge of shipbuilding problems.

In fact, it is not possible to design or furnish a cabin without specific experiences, based only on an "earth" design designed for interiors that are fixed and that only an earthquake can move.

The boat is a living construction, always on the move and subject to the most varied internal and external stresses.

The "Tiger Shark" design can be considered a pure "design" experiment, in which no aesthetic concession has been made… The hull, made of Peralurnan 35 aluminium with longitudinal structure, has a very backward CC and the consequent concentration of weights (engine equipment and tanks) in the stern sectors has allowed the use of large volumes for the purpose of habitability, which has an index very high for a boat of only 13 m. of LWL.

The bridge is designed to have a minimum of 2 meters in the habitable zone and a height of aft wall compatible with the fishing needs. Furthermore, this configuration avoids interruption of the beams in the areas of greatest stress. The structure is made up of four side members that act as a base for the engines with a box keel beam.

The distinctive "nose" of the "Tiger Shark" was born as a function of three precise needs:
The need to have a pulpit with at least three and a half meters of overhang with respect to the maximum length at the waterline
The desire to have the maximum useful bridge area
Possibility of arranging two anchors whose setting does not require manual intervention

These three objectives have been achieved with the study of a bow shape that also has a precise hydrodynamic function in sailing conditions with adverse sea. The engine equipment consists of two turbocharged Caterpillar D 336 A-TA diesels delivering a maximum power of 455 HP each. Axles, U-bolts, propellers and rudders are made of stainless steel.
From altomareblu.com


RCD /RINA Status:
Our understanding is that the vessel is exempt from the Recreational Craft Directive as she was first placed into use within EEA waters prior to 16th June 1998.
RINA inspected in 2017 and valid until 2020

Hull Construction:
Made of Peraluman 35 with longitudinal structure, a light alloy used for aeronautical constructions. The hulls, like aircraft fuselages, were built upside down on "scali" that used part of the structural elements of the boat.
Hull structure stripped back to raw metal and refinished with transparent coatings – 2017
Hull plate thickness checked prior to 2017 refit

Deck & Superstructure Construction:
The deck configuration avoids interruption of the beams in the areas of greater stress.
The structure is made up of four side members that act as a base for the engines with a box keel beam.
Superstructure stripped back and refinished as hull – 2017
Teak laid aft cockpit


Engine & gearbox:
2x Caterpillar 3208 V8 4-stroke turbo-charged 425hp diesel engines – 1999
Fresh water engine cooling via raw water intakes and heat exchangers
Reduction gearboxes with shaft drives
4-bladed propellers

Service & Maintenance:
Engine hours – approx. 300 as of March 2018

Propulsion & Steering:
Hydraulic steering with stainless steel rudders
Three helm stations (lower helm, flybridge and aft cockpit)


Voltage systems:
12vDC primary domestic system with 12vDC starting circuit and 220v AC via shorepower
Electrical systems overhauled - 2017

Battery Banks:
4x AGM batteries for services – 2016
2x engines start batteries - 2017

Charging / Inverter:
Battery charger

220vAC diesel generator
Overhauled in 2017

2x 12vDC 51Amp engine-mounted alternators

Shore Power:
220vAC shorepower


Fresh Water:
Pressurised fresh water system with 12vDC pressure pump
Hot & cold pressurised water supply via engine-driven calorifiers or via 220vAC immersion heater element in well-insulated hot water tank

Bilge Pumps:
12vDC electric bilge pump with float switch


2,660 litres fuel capacity in 2x tanks

Fresh Water:
1000 litres fresh water capacity in 1x tank


In Cockpit:

Communications Equipment:


Electric stove with 4x burners
Twin stainless steel sinks with fresh water supply
Twin front opening fridges

Electric heads
Fresh water supplies with shower in heads

LCD TV with amplified aerial


Summary of Accommodation:

7 berths in 4 cabins. Double crew cabin forward accessed from deck hatch. Owner’s cabin with twin berths and ensuite heads. Single guest cabin aft to starboard. Guest heads opposite to port. Twin bunk guest cabin aft to starboard. Galley opposite to port. Steps up to main saloon area with settee table, height adjustable table and lower helm position.

Designed for sport fishing on the high seas: the hull is of the deep V type; the external layout has a low cockpit and a tuna-door, tanks for the catch and a compartment for living. In the engine room, 1.90 m high, the generator is also housed.


Twin guardwires with stanchions
Steps to flybridge

Anchoring & Mooring:
2x 12vDC electric windlasses
2x Danforth anchors with chain
Warps and fenders

Covers, Cushions & Canvas:
Bow bathing cushions


General note on safety equipment: Any safety equipment such as liferafts, Epirbs, fire extinguishers and flares etc. are usually personal to the current owner(s) and if being left on-board as part of the sale of a used vessel may require routine servicing, replacement, or changing to meet a new owners specific needs.

Lying Marina di Castellabbate, Italy

Available to view strictly by appointment

Office Hours Mon- Fri 0900 – 17.00
Saturday by prior appointment

For more information or to arrange a viewing please contact us.

Please Note: Due to the varying locations of our yachts, your travel time and the distances that may be involved, we recommend that you only make arrangements to view if you are actively considering purchase.

Lead Broker: Michele Antonini – Grabau International (Italia)
Tel: - Click here to reveal phone number - Email: - Click to contact -
No. of cabins4No. of berths7
Waterline length13 metersTank capacity2660
Hull typealuminiumDesignerfranco harrauer
Grabau International Yacht Brokerage & Conveyancing
Grabau International Yacht Brokerage & Conveyancing
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Cantiere SAI Ambrosini - Tiger Shark 55
Cantiere SAI Ambrosini - Tiger Shark 55
£ 107,808Vat Included / Paid
ItalyMarina di Castellabbate, Italy ad ref. BS8149DF7  -  107 views